In a large service installation, what type of transformers are contained within CT cans?

In a large service installation, the type of transformers contained within CT cans are current transformers. Current transformers, or CTs, are specifically designed to measure the current flowing through a conductor. They do so by producing a secondary current proportional to the primary current, allowing for safe measurement without needing to directly connect measurement equipment to high voltage lines.

Current transformers are crucial for monitoring and protection in electrical systems, as they enable the accurate transformation of high current levels to lower levels suitable for measuring instruments and relays, thus facilitating effective system management and safety.

The presence of CTs within a dedicated can enclosure enhances their functionality and safety by offering protection from environmental factors and minimizing hazards associated with high current levels. This enclosure helps to ensure reliable operation while also making installation and maintenance easier.

Other types of transformers, such as voltage transformers, are used to measure voltage levels, while factors and phase transformers serve different roles within electrical systems. Hence, the role and application of current transformers distinguish them within CT cans in large service installations.